Boiler-cleaner.



PATENTED NOV. 12, 1907.

I. C. GRAY.

- BOILER CLEANER. APPLICATION TILED MAR.18, 1907.

[NVENTOR WM Alfomcy UNITED STATES PATENT OFFICE.

ISAAC CLINTON GRAY, OF LOGANSPORT, INDIANA, ASSIGNOR OF ONE-HALF TO PHILIP VOORHEES, OF LOGANSPORT, INDIANA.

BOILER-CLEANER.

To all 'whom it may concern:

Be it known that I, ISAAC CLINTON GRAY, a citizen of the UnitedStates, residing at Logansport, in the county of Cass and State of Indiana, have invented certain new and useful Improvements in Steam- Boiler Cleaners, of which the following is a specification.

My invention relates to cleaners for steam boiler furnaces, and is an improvement upon Letters Patent granted to me No. 541,272, dated June 18, 1895, and the object of the invention is to provide means especially adapted to the thorough cleaning out of the mud and sediment usually deposited in the bottoms of boiler furnaces. I accomplish these and other objects as illustrated in the accompanying drawings by means of a tubular cleaner andsteam pipe located in the bottom of the boiler furnace.

With these objects in view, the invention, therefore, resides in the novel construction of parts and their aggroupment in combination, as will be hereinafter fully described, and then the asserted novelty will be particularly pointed out and distinctly claimed.

I have fully and clearly illustrated the improvements in the annexed drawings to be taken as a part of this specification and wherein:

Figure lis a longitudinal sectional view through the boiler and cleaner. Fig. 2 is a transverse view, and Fig. 3 is a detail view thereof.

Referring to the drawings by reference notations, A designates a boiler furnace provided with a fire box B having the usual fire door 0 through which the fuel is fed to the firebox of the furnace.

D designates a steam dome secured to the top of the boiler furnace. E designates a steam boiler provided with the usual fire tubes F, and G designates a smoke 'stack through which the products of combustion are passed off. These features being of the well known type-of construction and not forming a part of my invention, a further description is herein deemed unnecessary.

H. designates a boiler cleaning tube provided with a suitable number of ports arranged in a diagonal or inclined manner relatively with each other and with the tube out of which they are formed, said tube secured at its forward end to the boiler head and located longitudinally in the boiler furnace and below the fire box thereof.

J designates an angular steam jet pipe having its noz zle end passed through a central opening in the rear end of the cleaner tube to a greater or less extent, ac-

cording-to circumstances, this pipe being turned by one of the angles thereof, and thence continued along Patented Nov. 12, 1907.

' longitudinally to the forward end of the boiler furnace between the bottom of the fire box and boiler, and through and a little beyond the boiler head and parallel with and in juxtaposition to the cleaner tube.

K designates a cock or globe valve having a hand wheel secured thereon by which the pressure of the steam in the steam jet pipe is controlled.

L designates a curved siphon tube connected to, and depending from, the forward end of the cleaner tube and on the outside of the boiler head. This siphon is provided at its lower end with a blow-off valve M opcrated by a hand wheel N, which is more clearly shown in Fig. 1 of the drawings.

The operation is as follows: The operator turns the hand wheel of the valve of the steam jet pipe and lets dry steam into the cleaner when the valve is opened medium of said steam jet pipe cock or valve, it having double pressure it then acts like a siphon and lets in the steam from the boilerinto the boiler cleaning tube when the mud and sediment in the bottom of the boiler furnace is blown out of the boiler cleaning tube and through the siphon tube, the cock or globe valve of the same being first opened for that purpose, which entirely cleans the mud and sediment out of the boiler furnace, the siphon tube being located and secured to the outside of the boiler head.

It has been found by experience that by the use of only this one tube having the diagonal or inclined ports it simplifies the construction and is of great advantage over the old device wherein two tubes are used, so much so that I can takethe mud and sediment out of the boiler furnace with double force and in less time than it has been previously done, from the fact that by my old construction only the bottom water pressure was used.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

The combination with the boiler furnace, at fire box located in said furnace, and a boiler provided with boiler tubes; of a boiler cleaning tube provided with a double set of inclined ports arranged oppositely one another, a steam jet pipe having its rear end turned at an angle to the body of the same, and the nozzle thereof entering the boiler cleaning tube, a valve, and u siphon tube secured to the forward end of the boiler cleaning tube and out side of the boiler head.

In testimony whereof I atfix my signature, in presence of two witnesses.

ISAAC CLINTON GRAY.

Witnesses:

CHAS. F. HIGHT, WALTER C. Runny.

the pressure of steam drawn from the boiler through the 

